User Input in C++

User input in C++ can be given by using the cin keyword along with the extraction operator ">>". In the following piece of code, we will declare the variable "x" and then let the user give the value of "x".

#include <iostream>
using namespace std;
int main()
{
  cout << "User input in C++.\n";
char y;
  cout << "Enter a character:";
  cin >> y;
  cout << "Your character is:" << y;
  return 0;
}

By adding user input in your code, you can create a simple calculator. An example of a calculator is given below-

#include <iostream>
using namespace std;
int main() 
{
  cout << "Simple calculator in C++\n";
  cout << "Enter the first number:";
  double x;
  cin >> x;
  cout << "Enter the second number:";
  double y;
  cin >> y;
  cout << "The sum of the numbers is:" << x+y;
  cout << "\nx-y=" << x-y;
  cout << "\ny-x=" << y-x;
  cout << "\nThe product of the numbers is:" << x*y;
  cout << "\nx/y=" << x/y;
  cout << "\ny/x=" << y/x;
  return 0;
}

That is all for this post on user input in C++. Hope you found it easy to understand. Please follow this blog to learn coding languages like Python, C++, etc.

Until next time,

Aarav Iyer

References:

(1) https://www.w3schools.com/cpp/cpp_user_input.asp